201 citations · 385 across the 8 of their papers we have counts for
8 papers
Annular Groove Phase Mask coronagraph in diamond for mid-IR wavelengths: manufacturing assessment and performance analysis
Christian Delacroix, Pontus Forsberg, Mikael Karlsson +7
Phase-mask coronagraphs are known to provide high contrast imaging capabilities while preserving a small inner working angle, which allows searching for exoplanets or circumstellar…
A diamond AGPM coronagraph for VISIR
Christian Delacroix, Oliver Absil, Dimitri Mawet +6
In recent years, phase mask coronagraphy has become increasingly efficient in imaging the close environment of stars, enabling the search for exoplanets and circumstellar disks. Co…
L'-band AGPM vector vortex coronagraph's first light on VLT/NACO: Discovery of a late-type companion at two beamwidths from an F0V star
D. Mawet, O. Absil, C. Delacroix +20
Context. High contrast imaging has thoroughly combed through the limited search space accessible with first-generation ground-based adaptive optics instruments and the Hubble Space…
Deep near-infrared interferometric search for low-mass companions around beta Pictoris
Olivier Absil, Jean-Baptiste Le Bouquin, Jeremy Lebreton +6
Aims. We search for low-mass companions in the innermost region (<300 mas, i.e., 6 AU) of the beta Pic planetary system. Methods. We obtained interferometric closure phase measurem…
The Optimal Gravitational Lens Telescope
J. Surdej, C. Delacroix, P. Coleman +8
Given an observed gravitational lens mirage produced by a foreground deflector (cf. galaxy, quasar, cluster,...), it is possible via numerical lens inversion to retrieve the real s…
Optical Vectorial Vortex Coronagraphs using Liquid Crystal Polymers: theory, manufacturing and laboratory demonstration
D. Mawet, E. Serabyn, K. Liewer +4
In this paper, after briefly reviewing the theory of vectorial vortices, we describe our technological approach to generating the necessary phase helix, and report results obtained…